JPS6087139A - Paper feeding apparatus - Google Patents
Paper feeding apparatusInfo
- Publication number
- JPS6087139A JPS6087139A JP58194595A JP19459583A JPS6087139A JP S6087139 A JPS6087139 A JP S6087139A JP 58194595 A JP58194595 A JP 58194595A JP 19459583 A JP19459583 A JP 19459583A JP S6087139 A JPS6087139 A JP S6087139A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- paper feeding
- paper feed
- cassette
- claw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H1/00—Supports or magazines for piles from which articles are to be separated
- B65H1/26—Supports or magazines for piles from which articles are to be separated with auxiliary supports to facilitate introduction or renewal of the pile
- B65H1/266—Support fully or partially removable from the handling machine, e.g. cassette, drawer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H1/00—Supports or magazines for piles from which articles are to be separated
- B65H1/04—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H1/00—Supports or magazines for piles from which articles are to be separated
- B65H1/08—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device
- B65H1/12—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device comprising spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
- B65H3/56—Elements, e.g. scrapers, fingers, needles, brushes, acting on separated article or on edge of the pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2405/00—Parts for holding the handled material
- B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
- B65H2405/12—Parts to be handled by user
- B65H2405/121—Locking means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S271/00—Sheet feeding or delivering
- Y10S271/901—Magnetic operation
Abstract
Description
【発明の詳細な説明】
旦術匁Ｍ
本発明は給紙装置、特に電子写真複写機やプリンター等
に組込まれる給紙装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper feeding device, and particularly to a paper feeding device incorporated into an electrophotographic copying machine, a printer, or the like.
従来技術
従来、この種の給紙装置としては、多数枚の複写紙を積
載収納した給紙カセットを複写機本体等の給紙部に着脱
可能とし、この給紙部に装着された給紙カセットから最
」二層の複写紙を一枚づつ給紙していくものが提供され
ている。そして、この種の給紙装置にあっては、複写紙
の給紙方向の先端部両側に分離爪を設置し、複写紙の多
重送りを防止している。PRIOR ART Conventionally, this type of paper feeding device has a paper feeding cassette loaded with and storing a large number of copies, which is removably attached to a paper feeding section of a copying machine body, etc., and a paper feeding cassette attached to this paper feeding section. There is a device that feeds two layers of copy paper one sheet at a time. In this type of paper feeding device, separating claws are installed on both sides of the leading edge of the copy paper in the paper feeding direction to prevent multiple feeding of the copy paper.
しかしながら、このものでは、給紙カセットに複写紙を
補給するには、給紙カセットを複写機本体等の給紙部か
ら離脱させる（引き出す）とともに、分離爪を複写紙先
端部の分離位置から手動で退避させながら新たな複写紙
を給紙力セントに積載しなければならず、極めて煩雑で
ある。However, with this device, in order to replenish copy paper into the paper cassette, the paper cassette must be removed (pulled out) from the paper supply section of the copying machine main body, etc., and the separation claw must be manually moved from the separation position at the leading edge of the copy paper. It is extremely troublesome to load new copy paper onto the paper feed center while retracting the copy paper at the paper feed center.
套肌の且伯
そこで、本発明の目的は、いちいち分離爪を分離位置か
ら退避させる操作を必要とせずに簡単な操作で複写紙を
補給することのできる給紙装置を提供することにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a paper feeding device that can replenish copy paper with a simple operation without requiring the operation of retracting the separation claw from the separation position.
３皿Ω房員
以」二の目的を達成するため、本発明に係る給紙装置は
、分離爪を給紙カセットの着脱操作と連動せしめ、給紙
カセットが給紙部に装着された状態では分離爪が複写紙
先端部を覆う分離位置に位置する一方、給紙カセットが
給紙部から離脱された状態では分離爪が複写紙先端部か
ら退避した退避位置に位置することを特徴とする。In order to achieve the second object of the present invention, the paper feeding device according to the present invention has a separating claw that is linked to the attachment/detachment operation of the paper feeding cassette, so that when the paper feeding cassette is attached to the paper feeding section, The separating claw is located at a separating position where it covers the leading edge of the copy paper, while the separating claw is located at a retracted position where it is retracted from the leading edge of the copy paper when the paper feed cassette is removed from the paper feeding section.
天施倒
第１図、第２図、第３図は本発明に係る給紙装置の第１
実施例を示し、給紙カセット（１）はトレイの底部に複
写紙載置板（２）を端板（３ａ）側を支点として一ヒ下
方向に回動自在に設けたもので、適宜ガイド手段例えば
アキュライドレール（１０）を介して給紙部に着脱可能
であり、第１図中＜Ａ）位置に押し込まれた状態で給紙
が行われ、（Ｂ）位置に引き出された状態で複写紙の補
給が行われる。アキュライドレール（１０）０１本１土
アウターレールとインナーレールとからなる周知の構成
からなり、アウターレールは複写紙の給紙部本体側に固
定され、これに対して摺動ｌ自在なインナーレールには
給紙カセット（１）が取付けである。Figures 1, 2, and 3 show the first diagram of the paper feeding device according to the present invention.
The paper feed cassette (1) is provided with a copy paper loading plate (2) at the bottom of the tray so as to be rotatable downwards with the end plate (3a) as a fulcrum. The means is removable from the paper feed unit via, for example, an Accuride rail (10), and paper is fed when pushed into the <A) position in Figure 1, and when pulled out to the (B) position. Copy paper is replenished. Accuride Rail (10) 01 This is a well-known structure consisting of an outer rail and an inner rail.The outer rail is fixed to the main body side of the copy paper feed section, and the inner rail is slidable relative to it. A paper feed cassette (1) is installed.
分離爪（５）は弾性金属板からなる基部（５ａ）の一部
を折り曲げて爪部（５ｂ）としたもので、側板（３１）
）。The separation claw (5) is made by bending a part of the base (5a) made of an elastic metal plate to form a claw part (5b), and the side plate (31)
).
（３ｂ）にピン（６）を介して支持されている。ピン（
６）は側板（３１１）に端部をカシメたもので、孔（５
ｃ）を軸部（６ａ）に遊嵌した分離爪（５）はＥリング
（７）にて抜止めされ、ピン（６）を支点として垂直面
上で回動自在であるとともに、孔（５ｃ）の細部（６ａ
）に対する〃タツキと自身のばね性にて水平面上で回動
自在である。(3b) via a pin (6). pin(
6) is a side plate (311) with the end caulked, and the hole (5)
The separation claw (5), which is loosely fitted into the shaft portion (6a), is prevented from coming out by an E-ring (7), and is rotatable on a vertical plane using the pin (6) as a fulcrum. ) details (6a
) It can be rotated freely on the horizontal plane due to its tack and its own spring properties.
また、分離爪（５）の端部に固定したばね板（８）は突
起（８ａ）が７キユライドル−ル（１０）のインナーレ
ール内面に当接することにより内方に付勢され、分離爪
（５）はその反作用としてピン（６）を支点として側方
に付勢されている。Further, the spring plate (8) fixed to the end of the separation claw (5) is urged inward when the protrusion (8a) comes into contact with the inner surface of the inner rail of the 7-kurade rule (10). 5) is biased laterally using the pin (6) as a fulcrum as a reaction.
位置決めローラ（２０）は複写紙の給紙部本体側に固定
したブラヶッ）（２］）に垂直面」二で回転自在に取付
けたもので、前記給紙カセット（１）が給紙部に装着さ
れているときには、分離爪（５）の爪部（５１１）近傍
を内方に押圧する。これにて、爪部（５１１）は載置板
（２）上に積載された複写紙（Ｐ）の先端両側部を覆う
こととなる。The positioning roller (20) is rotatably attached to a bracket (2) fixed to the main body of the paper feed section for copy paper on a vertical plane. When the separating claw (5) is pressed inward near the claw portion (511). In this way, the claw portion (511) covers both sides of the leading end of the copy paper (P) stacked on the mounting plate (2).
複写紙（Ｐ）は、給紙位置において、後に詳述するよう
に、押上げローラ（３３）にて載置板（２）とともに先
端が若千持柘」二げられた状態で上面が図示しない給紙
ローラに圧接し、該給紙ローラの回転に基づいて最上層
から１枚づつ矢印（Ｃ）方向に給紙されていく。このと
趣、複写紙（Ｐ）の両側部は分離爪（５）の爪部（５ｂ
）に当接して強制的に爪部（５ｂ）を通過していくこと
により、いわば１枚ごとにさばかれ、多重送りが防１１
−される。At the paper feeding position, the copy paper (P) is pushed up together with the placement plate (2) by the push-up roller (33), as will be described in detail later, with its top end pushed up as shown in the figure. Based on the rotation of the paper feed roller, the sheets are fed one by one in the direction of arrow (C) starting from the top layer. In this case, both sides of the copy paper (P) are separated by the claws (5b) of the separation claws (5).
) and forcibly pass through the claw part (5b), so to speak, the sheets are handled one by one, and multiple feeding is prevented.
- to be done.
一方、給紙カセット（１）を給紙部から外方に引ぎ出す
と、分離爪（５）は位置決めローラ（２０）による抑圧
を解除されるとともに板ばね（８）がアキュライドレー
ル（１０）から受ける付勢力の反作用にてピン（６）を
支点として側方に回動し、爪部（５１１）が複写紙（Ｐ
）の先端両側部から退避する。複写紙の補給は、給紙力
セラｌ−ｍを引外出したこの位置で、新たな複写紙を載
置板（２）上あるいは残った少量の複写紙（Ｐ）ｌに積
載することにより行う。On the other hand, when the paper feed cassette (1) is pulled out from the paper feed section, the separation claw (5) is released from the positioning roller (20) and the leaf spring (8) is moved outward from the Accuride rail (10). ), the claw portion (511) rotates laterally about the pin (6) as a fulcrum due to the reaction of the urging force received from the copy paper (P
) and retreat from both sides of the tip. Copy paper is replenished by loading new copy paper on the placement plate (2) or on the remaining small amount of copy paper (P) at this position where the paper feed force cellar l-m has been pulled out. .
このとき、補給される複写紙は爪部（５ｂ）に引つ掛か
ることなしにスムーズに積載することができる。At this time, the replenished copy sheets can be loaded smoothly without being caught by the claws (5b).
給紙カセット（１）を給紙部に装着するには、単に給紙
カセット（１）を内方に押し込めばよく、この押し込み
途中において位置決めローラ（２０）はまず分離爪（５
）の傾斜した上絵部（５ｄ）に当接しなから基部（５ａ
）に乗り上げて爪部（５ｂ）を内方に付勢する。なお、
ブラケッ） （２１）にはこのガイドをスムーズに行う
ため、傾斜面（２２ａ）を有するガイド部材（２２）が
設置されている。To attach the paper feed cassette (1) to the paper feed section, it is sufficient to simply push the paper feed cassette (1) inward. During this push, the positioning roller (20) first moves the separation claw (5).
), the base part (5a
) and urges the claw part (5b) inward. In addition,
A guide member (22) having an inclined surface (22a) is installed on the bracket (21) in order to perform this guiding smoothly.
また、位置決めローラ（２０）は垂直面上で回転自在と
されているが、これは分離爪（５）が押上げローラ（３
３）の上下動に基づいて載置板（２）とともに上下に回
動することをガイドするためである。Furthermore, the positioning roller (20) is rotatable on a vertical plane, but this is because the separation claw (5) is connected to the push-up roller (3).
This is to guide the vertical rotation together with the mounting plate (2) based on the vertical movement of step 3).
第４図〜第８図は本発明の第２実施例〜第６実施例を示
すもので、第４図に示す第２実施例は、前記第１実施例
に示した板ばね（８）を分離爪（５）の後端に折り返し
方向に取付け、突起（８ａ）とピン（６）とを同軸上に
位置させたもので、突起（８ａ）がアキュライドレール
（１０）のインナーレールに当接することにより、分離
爪（５）は後端を内方に押圧されるとともにビン（６）
を支点として爪部（５ｂ）が側方に付勢される。4 to 8 show second to sixth embodiments of the present invention, and the second embodiment shown in FIG. 4 uses the leaf spring (8) shown in the first embodiment. It is attached to the rear end of the separation claw (5) in the folded direction, and the protrusion (8a) and pin (6) are positioned coaxially, so that the protrusion (8a) touches the inner rail of the Accuride rail (10). By making contact, the rear end of the separating claw (5) is pressed inward and the bottle (6)
The claw portion (5b) is urged laterally using the fulcrum as the fulcrum.
第５図に示す第３実施例は、ビン（６）を支点として水
平面一に、垂直面」４で回動自在に設けた分離爪（５）
の後端とアキュライドレール（１０）のインナーレール
との間にコイルばね（２３）を圧縮状態で装着し、分離
爪（５）に常時外方に拡開する付勢力を付与したもので
ある。第６図に示す第４実施例は、アキュライドレール
（１０）のインナーレールに永久磁石（２４）を取付け
、磁性体からなる分離爪（５）をピン（６）を支点とし
て水平面上、垂直面上で回動自在に取付けたもので、永
久磁石（２４）の磁界が分離爪（５）に及ぶことにより
、爪部（５１］）が側方に付勢される。In the third embodiment shown in FIG. 5, a separating claw (5) is provided on a horizontal plane with the bin (6) as a fulcrum and is rotatable in a vertical plane.
A coil spring (23) is installed in a compressed state between the rear end and the inner rail of the Accuride rail (10), and a biasing force is applied to the separation claw (5) to constantly expand outward. . In the fourth embodiment shown in FIG. 6, a permanent magnet (24) is attached to the inner rail of an Accuride rail (10), and a separating claw (5) made of a magnetic material is used as a fulcrum on a horizontal plane and vertically. It is rotatably attached on a surface, and when the magnetic field of the permanent magnet (24) reaches the separating claw (5), the claw part (51]) is urged laterally.
これらの各１２．３．ｌｌ実施例はいずれも前記第１実
施例と同様に分離爪（５）が水平面上で側方に回動して
分離位置から退避するようにしたもので、給紙位置にあ
っては図示しない位置決めローラ（第１図、第２図中（
２０）で示されている）にて分離爪（５）の先端が内方
に押圧され、爪部（５１１）が分離位置に位置する。そ
して、給紙カセット（１）を給紙部から引き出したとき
、位置決めローラ（２ｏ）による抑圧が解除されて爪部
（５ｂ）が側方に退避することとなる。Each of these 12.3. In both embodiments, the separation claw (5) rotates laterally on a horizontal plane to retreat from the separation position, similar to the first embodiment, and is not shown in the paper feeding position. Positioning roller (in Figures 1 and 2)
20)), the tip of the separating claw (5) is pressed inward, and the claw part (511) is located at the separating position. Then, when the paper feed cassette (1) is pulled out from the paper feed section, the suppression by the positioning roller (2o) is released and the claw portion (5b) is retracted to the side.
特に、第４図に示すように、突起（８ａ）とビン（６）
とを同軸上に位置させれば、分離爪（５）の回動が極め
てスムーズなものとなる。In particular, as shown in Figure 4, the protrusion (8a) and the bottle (6)
If these are positioned on the same axis, the rotation of the separating claw (5) will be extremely smooth.
第７図はｆ５５実施例を示し、分離爪（５）を給紙カセ
ット（１）の引ぎ出し方向に退避させるようにしたもの
で、分離爪（５）は長孔を給紙カセット（１）に突設し
たピンに遊嵌することにより矢印（Ｄ）及びその逆方向
に移動自在であり、後端にはツレ／イド（２５）のプラ
ンジャ（２５ａ ）が連結され、分離爪（５）から切り
起した突片（５ｅ）には復帰ばね（２６）が止着されて
いる。従って、この第５実施例では給紙カセット（１）
が給紙位置にあるときにはソレノイド（２５）がオフし
、分離爪（５）は復帰ばね（２６）にて矢印（Ｄ）方向
に付勢され、爪部価１））は分離位置に位置している。Fig. 7 shows an F55 embodiment, in which the separation claw (5) is retracted in the direction in which the paper feed cassette (1) is pulled out. ) is movable in the direction of the arrow (D) and the opposite direction by loosely fitting it into a pin protruding from the hole (25), and the plunger (25a) of the slide/id (25) is connected to the rear end, and the separation claw (5) A return spring (26) is fixed to the protruding piece (5e) cut out from above. Therefore, in this fifth embodiment, the paper feed cassette (1)
When is in the paper feeding position, the solenoid (25) is turned off, the separation claw (5) is urged in the direction of arrow (D) by the return spring (26), and the claw part 1)) is in the separation position. ing.
給紙カセット（１）が引き出された状態ではソレノイド
（２５）がオンされ、分離爪（５）は矢印（Ｄ）とは逆
方向に移動し、第７図中点線で示すように、爪部（５ｂ
）が分離位置から退避する。When the paper feed cassette (1) is pulled out, the solenoid (25) is turned on and the separation claw (5) moves in the direction opposite to the arrow (D), as shown by the dotted line in FIG. (5b
) retreats from the separation position.
第８図は第６実施例を示し、磁性体からなる分離爪（５
）をピン（６）を支点として矢印（Ｅ）及びその逆方向
に回動自在に設け、アキュライドレール（１０）のイン
ナーレールに永久磁石（２７）を取付けたもので、永久
磁石（２７）の磁界が分離爪（５）に及ぶことにより、
爪部（５１１）が矢印（Ｅ）方向に付勢されて分離位置
から退避する。FIG. 8 shows a sixth embodiment, in which a separating claw (5
) is provided to be rotatable in the direction of the arrow (E) and the opposite direction using the pin (6) as a fulcrum, and a permanent magnet (27) is attached to the inner rail of the Accuride rail (10). By applying the magnetic field to the separating claw (5),
The claw portion (511) is urged in the direction of arrow (E) and retreats from the separation position.
次に、第９図以下を参照して給紙部の構成を詳細に説明
する。Next, the structure of the paper feeding section will be explained in detail with reference to FIG. 9 and subsequent figures.
第９図〜１２図において、給紙カセット（１）はアキュ
ライドレール（１０）のインナーレール（１，０ａ）に
取付けられ、アウターレール（１，０ｉ１）は複写機本
体のフレームに固定され、給紙カセット（１）は矢印（
Ｆ）及びその逆方向に移動自在である。給紙部には給紙
力セラｌ）のｉ／４下にその移動方向とは直交方向に支
軸（３０）を介して回動自在に支持された紙押上げレバ
ー（３１）が設置され、この紙押上げレバー（３１）は
中央部に形成したレバ一部（３２ａ）に押上げローラ（
３３）を回転自在に、両側部に形成したレバ一部（３２
ｂ）、（３２１〕）に押下げローラ（３４）を回転自在
に、両端部にロックローラ（３５）、（３５）を回転自
在に装着したもので、レバ一部（３２１））。In FIGS. 9 to 12, the paper feed cassette (1) is attached to the inner rail (1, 0a) of the Accuride rail (10), the outer rail (1, 0i1) is fixed to the frame of the copying machine body, The paper cassette (1) is indicated by the arrow (
F) and the opposite direction. In the paper feed section, a paper push-up lever (31) rotatably supported via a spindle (30) in a direction perpendicular to the direction of movement of the paper push-up lever (31) is installed below i/4 of the paper feed force cell (1). , this paper push-up lever (31) has a push-up roller (
33) is rotatably formed on both sides of the lever part (32).
b) A press-down roller (34) is rotatably attached to the lever (321), and lock rollers (35) are rotatably attached to both ends of the lever (321).
（３２ｂ）に一端を止着したコイルばね（３６）にて常
時矢印（Ｇ）方向にイ」勢されている。It is always biased in the direction of arrow (G) by a coil spring (36) whose one end is fixed to (32b).
ロックレバ−（３７）、（３７）は給紙部の両側に支軸
（３８）を介して回動自在に装着したもので、復帰ばね
（３９）、（３９）にて常時矢印（トＩ）方向に付勢さ
れ、切欠き（３７ａ）に前記ロックローラ（３５）が係
合することにより紙押上げレバー（３１）の上動を阻止
する。ガイドブレー） （４０）、（４０）は傾斜部（
４０ａ）と水平部（４０１１）とからなり、アキュライ
ドレール（１０）の両側に突出するようにインナーレー
ル（ｌｏａ）に取付けたもので、給紙カセット（＋）と
一体的に移動自在である。この〃イドプート（４０）は
給紙カセット（１）の引き出し動作に伴って前記押下げ
ローラ（３４）を押圧し、紙押上げレバー（３１）を矢
印（Ｇ）とは反対に回動させる。また、前記インナーレ
ール（１０ａ）、（１０ａ）の先端にはトリガレバー＜
４１）、（４１）が固定され、給紙カセット（１）とと
もに給紙部に押し込まれた際にロックレバ−（３７）を
矢印（＋−１）とは逆方向に回動させ、切欠％（３７ａ
）のロックローラ（３５）に対する係合を解除する。The lock levers (37), (37) are rotatably mounted on both sides of the paper feed section via a support shaft (38), and are always set in the direction of the arrow (I) by the return springs (39), (39). The lock roller (35) engages with the notch (37a) to prevent the paper push-up lever (31) from moving upward. guide brake) (40), (40) are inclined parts (
40a) and a horizontal part (4011), which is attached to the inner rail (LOA) so as to protrude from both sides of the Accuride rail (10), and is movable integrally with the paper feed cassette (+). . As the paper feed cassette (1) is pulled out, the idle putter (40) presses the push-down roller (34) and rotates the paper push-up lever (31) in the opposite direction of the arrow (G). In addition, a trigger lever <
41) and (41) are fixed and pushed into the paper feed section together with the paper feed cassette (1), rotate the lock lever (37) in the direction opposite to the arrow (+-1) to set the notch % ( 37a
) is disengaged from the lock roller (35).
以上の構成において、給紙カセット（１）が給紙部に装
７１されているとき、即ち第５〕図、ｆｉＳ１１図に示
すように、給紙カセット（１）を給紙部に押し込むとき
トリガレバ−（４１）がロックレバ−（３７）を押圧し
、ロックレバ−（３７）が矢印（Ｉ（）とは逆方向に若
干回動腰切欠３（３７ａ）のロックローラ（３５）に対
する係合か１１？１除される。このと外、紙押」二げレ
バー（３１）は支軸（３０）を支点として上方に回動し
、押」二げローラ（３３）か複写紙載置板（２）の先端
を押し」二げる。複゛Ｉ）紙（Ｐ）は載置板（２）とと
もに最上層が給紙ローラ（１１，５）に圧接するまで押
し」１げられる。また、給紙部への装着と同時に分離爪
（５）、（５）が内方に回動し、爪部（５１１）が複写
紙先端部を覆うのは前述のとおりである。In the above configuration, when the paper feed cassette (1) is loaded 71 in the paper feed section, that is, when pushing the paper feed cassette (1) into the paper feed section, as shown in FIG. - (41) presses the lock lever (37), and the lock lever (37) rotates slightly in the direction opposite to the arrow (I ()). ?1 is divided by 1. At this time, the paper pusher lever (31) rotates upward about the support shaft (30), and the paper pusher lever (31) rotates upward using the support shaft (30) as a fulcrum. ) is pushed up.The paper (P) is pushed up together with the placement plate (2) until the top layer comes into pressure contact with the paper feed rollers (11, 5). Further, as described above, the separation claws (5), (5) rotate inward at the same time as the copy paper is attached to the paper feed section, and the claw portion (511) covers the leading edge of the copy paper.
複写紙（Ｐ）は給紙ローラ（４５）、（４５）を矢印（
Ｉ）方向に回転させることにより最上層の１枚が分離爪
（５）にてさばかれて矢印（Ｃ）方向に給紙されていく
。なお、給紙ローラ（４５）、（４５）とその支軸（４
６）の間には支軸（４６）から矢印（Ｉ）方向の回転力
のみを給紙ローラ（４５）、 （４，５）に伝達するワ
ンウェイクラッチが介在されている。給紙時において給
紙ローラ（４５）、−（４５）は１回転だけ駆、φ１１
され、給紙された複写紙は給紙カセット（１）から出る
と直ちに図示しない搬送ローラにて強制的に搬送される
。For the copy paper (P), move the paper feed rollers (45) and (45) along the arrows (
By rotating in the direction I), one sheet of the top layer is separated by the separating claws (5) and fed in the direction of the arrow (C). Note that the paper feed rollers (45), (45) and their support shafts (4
A one-way clutch is interposed between the paper feed rollers (45) and (4, 5) to transmit only the rotational force in the direction of arrow (I) from the support shaft (46) to the paper feed rollers (45) and (4, 5). During paper feeding, paper feed rollers (45) and -(45) are driven only one rotation, φ11
As soon as the fed copy paper comes out of the paper feed cassette (1), it is forcibly transported by a transport roller (not shown).
給紙が何回も行われ、複写紙（Ｐ）の残量か少なくなる
に従ってフィルばね（３６）、 （３６）にて紙押−１
−げレバー（３１）が矢印（Ｇ）方向に回動し、押−に
げローラ（３３）の上動にて載置板（２）を押し上げ、
給紙ローラ（４５）に対する一定の圧接力を保持する。Paper is fed many times, and as the remaining amount of copy paper (P) decreases, the fill springs (36) and (36) are used to push paper (1).
- The push lever (31) rotates in the direction of arrow (G), and the upward movement of the push roller (33) pushes up the mounting plate (2).
A constant pressing force is maintained against the paper feed roller (45).
一方、複写紙の補給は給紙カセット（１）を外方に引と
出して行う。即ち、第１２図に示すように、給紙カセッ
ト（１）の引き出しく第１２図中左方への移動）に応し
て、トリ、Ｊ／ｌ／バー（４１）のロックレバ−（３７
）に対する当接力情ｑ除され、口・ンクレ／＜−（３７
）が復帰ぼね（３９）のばね力で矢印（Ｈ）方向に回動
するとともに、ガイドプレー）（４０）の傾斜部（４０
ａ）から水平部（４０１，）にて押下げローラ（３４）
が押圧され、紙押えレバー（３１）が矢印（Ｇ）とは逆
方向に回動し、押」二げローラ（３３）が下動すること
によって載置板（２）が水平位置まで回動する。On the other hand, copy paper is replenished by pulling out the paper feed cassette (1). That is, as shown in FIG. 12, when the paper feed cassette (1) is pulled out (moved to the left in FIG. 12), the lock lever (37
), the contact force q is removed, and the mouth/neck/<-(37
) is rotated in the direction of arrow (H) by the spring force of the return spring (39), and the inclined portion (40) of the guide play (40)
Push down roller (34) at horizontal part (401,) from a)
is pressed, the paper presser lever (31) rotates in the opposite direction of the arrow (G), and the presser roller (33) moves downward, thereby rotating the placing plate (2) to a horizontal position. do.
同時に、ロックレバ−（３７）の切欠き（３７ａ）に口
、ンクローラ（３５）が係合し、紙押上げレバー（３１
）がロックされる。このとき、分離爪（５）は前述のご
とく複写紙の先端部から退避し、複写紙の補給を容易に
行うことができる。At the same time, the roller (35) engages with the notch (37a) of the lock lever (37), and the paper push-up lever (31)
) is locked. At this time, the separating claw (5) is retracted from the leading edge of the copy paper as described above, making it easy to replenish the copy paper.
給紙カ七ン）（１）は角度給紙部【こ押し込むことによ
り、紙押」二げレバー（３１）等が第９図、第１１図の
状態に復帰し、給紙力可能となる。逆に、第１２図の（
Ｂ）位置からさらに左方に引き出すことか可能で（Ｂ゛
）において給紙カセ・ノド（１）の手前１間を持ち−）
二げること１こよってインナーレール（１０ａ）がアウ
ターレール（Ｈ）ｌ＋）から外れ、給紙カセ、２ト（１
）自体を給紙部から取外すことができる。The paper feeder (1) is the angular paper feeder (by pushing the paper push lever (31) etc. back to the state shown in Figures 9 and 11, the paper feed force is enabled. . On the contrary, (
It is possible to pull it out further to the left from the B) position (at B), hold the paper feed cassette one space in front of the throat (1).
As a result, the inner rail (10a) comes off from the outer rail (H)l+), and the paper feed cassette,
) itself can be removed from the paper feed unit.
一方、給紙時にあっては、給紙ローラ（４５）、 （４
５）の回転力が複写紙（Ｐ）から給紙カセット（１）に
伝達されるため、給紙カセット（１）を給紙位置に正確
に位置決めしておかなければならない。そのために、例
えば、第１３図、第１４図に示すように、コイルばね（
１３）で付勢された鋼球（１２）を設けたスプリングプ
ランジャ（１１）を７ウターレール（１０１１）に取イ
て１け、インナーレール（１，ｏａ）に鋼球（１２）が
嵌合可能な孔（１８）が形成されている。これによれば
、給紙カセット（１）が給紙位置に達したとぎに鋼球（
１２）か孔（１８）に嵌合し、給紙力セラｌ−’（１）
の位置決めか行われる。On the other hand, during paper feeding, the paper feeding rollers (45), (4
Since the rotational force 5) is transmitted from the copy paper (P) to the paper feed cassette (1), the paper feed cassette (1) must be accurately positioned at the paper feed position. For this purpose, for example, as shown in FIGS. 13 and 14, coil springs (
A spring plunger (11) equipped with a steel ball (12) energized by 13) is placed on the 7 outer rail (1011), and the steel ball (12) can be fitted to the inner rail (1, oa). A hole (18) is formed. According to this, the steel ball (
12) or hole (18), and press paper feed force cell l-' (1).
positioning is performed.
第１５図は池の変形例であり、アウターレール（１，ｏ
ｂ）の床面と天井面とに突部（１４，）、（１，４）を
設け、インナーレール（１０ａ）の」二下面に突部（１
５）を設けたもので、給紙カセット（１）が給紙位置に
達したときに突部（１５）が突部（１４）、（１４）の
間に嵌合し位置決めが行われる。Figure 15 shows a modification of the pond, with an outer rail (1, o
Protrusions (14,) and (1, 4) are provided on the floor and ceiling surfaces of b), and protrusions (1, 1, 4) are provided on the lower surface of the inner rail (10a).
5), when the paper feed cassette (1) reaches the paper feed position, the protrusion (15) fits between the protrusions (14) and (14) to perform positioning.
ｆｉＳ］６図はい主ひとつ変形例であり、アウタレール
００１ｄ）の内側面に中央に突起（’１６ａ）を有する
弧状のばね板（１６）を電イ」け、インナーレール（１
０ａ）に突起（１，６ａ）が嵌合可能な孔（１７）を形
成したもので、前記第１３図のものと同様に突起（１６
ａ）が孔（１７）に嵌合することにより位置決めが行わ
れる。[fiS] Fig. 6 is a modified example, and an arc-shaped spring plate (16) having a protrusion ('16a) at the center is energized on the inner surface of the outer rail (001d).
0a) is formed with a hole (17) into which the protrusion (1, 6a) can fit, and the protrusion (16) is similar to the one in FIG.
Positioning is performed by fitting a) into the hole (17).
即ち、第９図以下に説明した給紙部の構成によれば、イ
ンナーレール（Ｈｌａ）に取付けた給紙カセ・２ト（１
）を給紙部に押し込むというワンタッチの操作及び給紙
カセット（１）を外方と引き出すというワンタッチの操
作で給紙カセット（１）を給紙部に着脱でき、しかも給
紙カセット（１）を引き出した状態で複写紙の補給を行
うことができる利点を有する。この点、従来では給紙カ
セット（１）をいったん給紙部から取外した状態で紙補
給を行わなければならなかったり、いちいちロックを解
除したうえで給紙カセット（１）を給紙部から離脱させ
ることが必要であった煩雑さに比べれば、紙補給操作は
極めて容易である。That is, according to the structure of the paper feed section explained in FIG.
) into the paper feed section and pull out the paper cassette (1) outwards to attach and remove the paper cassette (1). It has the advantage that copy paper can be replenished in the pulled out state. In this regard, in the past, it was necessary to remove the paper cassette (1) from the paper feed section before replenishing paper, or to release the lock each time before removing the paper cassette (1) from the paper feed section. Paper replenishment operations are extremely easy compared to the complexity required to do so.
発明の籾米
以上の説明から明らかなように、本発明は分離爪を給紙
カセットの着脱繰作と連動せしめ、給紙カセットが給紙
部に装着された状態では分用り爪が複写紙先端部を覆う
分離位置に位置する一方、給紙カセットが給紙部から離
脱された状態では分離爪が複写紙先端部から退避した退
避位置に位置するようにしたため、給紙力セントを給紙
部から離脱させれば自動的に分離爪が分離位置から退避
することとなり、分離爪をいちいち退避させることなく
簡肇に複写紙の補給を行うことがでとる。Rice of the InventionAs is clear from the above description, the separating claw of the present invention is linked to the attachment/detachment of the paper feed cassette, and when the paper feed cassette is attached to the paper feed section, the separating claw is attached to the leading edge of the copy paper. On the other hand, when the paper feed cassette is removed from the paper feed section, the separation claw is located at the retracted position where it is retracted from the leading edge of the copy paper. If the separating claw is removed from the separating position, the separating claw automatically retracts from the separating position, and it is possible to easily replenish the copy paper without having to retreat the separating claw one by one.
第１図は本発明に係る給紙装置の第１実施例の斜視図、
第２図はその平面図、第３図はその要部に関する断面図
である。第４図は第２実施例の要部に関する平面図、第
５図は第３実施例の平面図、第６図は第４実施例の平面
図、第７図は第５実施例の平面図、第８図は第６実施例
の正面図である。
第９図は給紙部を説明するための斜視図、第１０図はそ
の平面図、第１１図、第１２図はその動作状態を示す正
面図、第１３図は位置決め手段の斜視図、第１４図はス
プリングプランツヤの断面図、第１５図、第１６図はそ
れぞれ位置決め手段の変形例を示す斜視図である。
（１）・・・給紙カセット、（２）・・・複写紙載置板
、（５）・・・分離爪、（６）・・・ビン、（８）・・
・板ばね、（１０）・・・アキュライドレール、（１０
ａ）・・・インナーレール、（ｌｏｂ）・・・アウター
レール、（２０）・・・位置決めローラ、（２３）・・
・コイルばね、（２４）、（２５）・・・永久磁石、（
２５）・・・ツレメイド、（Ｐ）・・・複写紙特許出願
人 ミノルタカメラ株式会社
代理人 弁 理 士 青用 葆 ほか２名第５図
Ｐ
第６図
第７図
第８図FIG. 1 is a perspective view of a first embodiment of a paper feeding device according to the present invention;
FIG. 2 is a plan view thereof, and FIG. 3 is a sectional view of the main part thereof. Fig. 4 is a plan view of the main parts of the second embodiment, Fig. 5 is a plan view of the third embodiment, Fig. 6 is a plan view of the fourth embodiment, and Fig. 7 is a plan view of the fifth embodiment. , FIG. 8 is a front view of the sixth embodiment. 9 is a perspective view for explaining the paper feeding section, FIG. 10 is a plan view thereof, FIGS. 11 and 12 are front views showing its operating state, and FIG. 13 is a perspective view of the positioning means. FIG. 14 is a sectional view of the spring planter, and FIGS. 15 and 16 are perspective views showing modified examples of the positioning means. (1)... Paper feed cassette, (2)... Copy paper placement plate, (5)... Separation claw, (6)... Bin, (8)...
・Plate spring, (10)... Accuride rail, (10
a)... Inner rail, (lob)... Outer rail, (20)... Positioning roller, (23)...
・Coil spring, (24), (25)...Permanent magnet, (
25)... Tsuremade, (P)... Copying paper patent applicant Minolta Camera Co., Ltd. agent Patent attorney Aoyou Ao and 2 others Figure 5 P Figure 6 Figure 7 Figure 8
Claims (1)
枚ごとにさばく分離爪を備えた給紙カセットを複写機本
体等の給紙部に対して着脱可能とした給紙装置において
、前記分離爪を給紙カセットの着脱操作と連動せしめ、
給紙カセットが給紙部に装着された状態では分離爪が複
写紙先端部を覆う分離位置に位ｊ６する一方、給紙カセ
ットが給紙部から離脱された状態では分離爪が複写紙先
端部から退避した退避位置に位置することを特徴とする
給紙装置。(1) Loaded and stored g/several sheets of copy paper 1 from the top layer
In a paper feed device in which a paper feed cassette equipped with a separation claw for separating sheets one by one is removable from a paper feed unit of a main body of a copying machine, the separation claw is linked with the attachment/detachment operation of the paper feed cassette,
When the paper feed cassette is attached to the paper feed section, the separation claw is at the separation position that covers the leading edge of the copy paper, while when the paper cassette is removed from the paper feed section, the separation claw is positioned at the separation position that covers the leading edge of the copy paper. A paper feeding device characterized in that the paper feeding device is located at a retracted position.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58194595A JPS6087139A (en) | 1983-10-17 | 1983-10-17 | Paper feeding apparatus |
| US06/660,318 US4595191A (en) | 1983-10-17 | 1984-10-12 | Paper feed device having retractable separating pawls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58194595A JPS6087139A (en) | 1983-10-17 | 1983-10-17 | Paper feeding apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6087139A true JPS6087139A (en) | 1985-05-16 |
Family
ID=16327151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58194595A Pending JPS6087139A (en) | 1983-10-17 | 1983-10-17 | Paper feeding apparatus |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4595191A (en) |
| JP (1) | JPS6087139A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62200643U (en) * | 1986-06-11 | 1987-12-21 | ||
| JPS6332845U (en) * | 1986-08-14 | 1988-03-03 | ||
| US5054759A (en) * | 1988-12-27 | 1991-10-08 | Mannesmann Aktiengesellschaft | Apparatus for feeding individual sheets in office machines |
| US9060905B2 (en) | 2013-03-08 | 2015-06-23 | The Procter & Gamble Company | Wearable absorbent articles |
| US9078792B2 (en) | 2011-06-30 | 2015-07-14 | The Procter & Gamble Company | Two-piece wearable absorbent article having advantageous front waist region and landing zone configuration |
| US9078789B2 (en) | 2013-03-08 | 2015-07-14 | The Procter & Gamble Company | Outer covers and disposable absorbent inserts for pants |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4772007A (en) * | 1984-10-19 | 1988-09-20 | Canon Kabushiki Kaisha | Cut sheet holding and feeding apparatus |
| EP0367200B1 (en) * | 1988-10-31 | 1994-01-26 | Canon Kabushiki Kaisha | Sheet feeding apparatus |
| US5232214A (en) * | 1989-03-08 | 1993-08-03 | Minolta Camera Kabushiki Kaisha | Paper supplying apparatus and method using a detachable cassette |
| JP2925368B2 (en) * | 1991-07-25 | 1999-07-28 | キヤノン株式会社 | Sheet feeding apparatus and image forming apparatus |
| US5437444A (en) * | 1992-03-12 | 1995-08-01 | Canon Kabushiki Kaisha | Sheet supplying apparatus |
| JP3285973B2 (en) * | 1992-12-03 | 2002-05-27 | 株式会社リコー | Paper feeder |
| KR970045377U (en) * | 1995-12-20 | 1997-07-31 | Feeding anti-folding device for printing equipment | |
| TW555651B (en) * | 1998-04-14 | 2003-10-01 | Fuji Photo Film Co Ltd | Paper feeding cassette printer for use with paper feeding cassette and paper feeding method |
| JP3907535B2 (en) * | 2002-06-21 | 2007-04-18 | キヤノン株式会社 | Printing device and paper cartridge |
| US20070001386A1 (en) * | 2002-06-21 | 2007-01-04 | Canon Kabushiki Kaisha | Printing apparatus and sheet cartridge |
| EP2206665A1 (en) * | 2009-01-08 | 2010-07-14 | Sagem Communications Sas | Cassette for a printing apparatus |
| JP2011157164A (en) * | 2010-01-29 | 2011-08-18 | Brother Industries Ltd | Sheet feeding device and image forming apparatus |
| JP6972058B2 (en) * | 2019-03-18 | 2021-11-24 | 株式会社東芝 | Paper feed device, image forming device and electrode supply device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK114351B (en) * | 1964-09-19 | 1969-06-23 | Zeuthen & Aagaard As | Sheet separator mechanism especially for printing machines and duplicators. |
| US3417988A (en) * | 1967-03-13 | 1968-12-24 | Heyer Inc | Sheet guiding mechanism |
| DE1916623B1 (en) * | 1969-04-01 | 1971-02-18 | Roto Werke Gmbh | Corner hold-down device for a sheet feeder for sheet processing machines |
| US3689064A (en) * | 1969-05-05 | 1972-09-05 | Scm Corp | Paper feed arrangement |
| JPS5126069B2 (en) * | 1972-03-10 | 1976-08-04 | ||
| US4032137A (en) * | 1974-10-22 | 1977-06-28 | Canon Kabushiki Kaisha | Feed cassette device |
| JPS5273041A (en) * | 1975-12-15 | 1977-06-18 | Ricoh Co Ltd | Paper supplying cassette |
| US4303235A (en) * | 1980-08-18 | 1981-12-01 | Calabrese Richard A | Paper cassette |
| JPS5751629A (en) * | 1980-09-11 | 1982-03-26 | Minolta Camera Co Ltd | Paper sheet storing cassette |
-
1983
- 1983-10-17 JP JP58194595A patent/JPS6087139A/en active Pending
-
1984
- 1984-10-12 US US06/660,318 patent/US4595191A/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62200643U (en) * | 1986-06-11 | 1987-12-21 | ||
| JPH0512187Y2 (en) * | 1986-06-11 | 1993-03-29 | ||
| JPS6332845U (en) * | 1986-08-14 | 1988-03-03 | ||
| JPH0328031Y2 (en) * | 1986-08-14 | 1991-06-17 | ||
| US5054759A (en) * | 1988-12-27 | 1991-10-08 | Mannesmann Aktiengesellschaft | Apparatus for feeding individual sheets in office machines |
| US9078792B2 (en) | 2011-06-30 | 2015-07-14 | The Procter & Gamble Company | Two-piece wearable absorbent article having advantageous front waist region and landing zone configuration |
| US9060905B2 (en) | 2013-03-08 | 2015-06-23 | The Procter & Gamble Company | Wearable absorbent articles |
| US9078789B2 (en) | 2013-03-08 | 2015-07-14 | The Procter & Gamble Company | Outer covers and disposable absorbent inserts for pants |
Also Published As
| Publication number | Publication date |
|---|---|
| US4595191A (en) | 1986-06-17 |
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